The unsubscribe option in junk email can work, but it depends. You can use it to stop receiving emails from certain senders. When you click unsubscribe, the sender should remove you from their list. However, some senders ignore this request. In some cases, they may continue to send emails. Some junk emails use fake unsubscribe links. These links might lead to more spam instead of stopping the emails. It's important to be cautious when clicking on unsubscribe links. You can also mark these emails as spam to prevent them from appearing in your inbox again.